latin name：polygonum multiflorum alternate active ingredients：phosphatide testing method：hplc specifications: used part: root smell: special smell, flavor colour: red brown particle size:80mesh loss on drying:≤5% heavy metals:＜10ppm pesticide: <2ppm total germ:＜1000cfu/g e.coli: negative salmonella|: negative yeasts and molds:＜100cfu/g pharmacology function: 1 , delay ageing role experiments proved that thought to be extended and its agents diplont cell growth cycle, cell growth exuberant, life expectancy has increased. shou wu herbs can significantly reduce the dependence of plasma and liver guo oxide skin, improving the blood bone marrow function and impact indicators xueyeliubian of chaoyang anion radicals have better clearance, anti-oxidation are shown shouwu, aging veteran functions. shouwu extraction can promote thymus cells hyperplasia, delayed age of sexual degradation shrinking, clear cell immunization and promotion of the role of immune regulating body fluids, organisms enhance the resistance to keep fit and healthy, promise longevity. 2 , and anti-artery congee kind xiangxuezhi role shou wu herbs to grow significantly lower blood cholesterol, and ganyousanzhi beta - lipoprotein content, thought to lower blood lipid note, the delay artery congee kind measure formation and development. 3 , the protection of the liver role shouwu four hydroxy ethylene - beta － d - glucose treatments network is the active ingredients that can prevent fat liver, liver damage and liver function levels rise too oxide skin lower serum valley c zhuaianmei and millet straw zhuaianmei. in addition, increased gantang original thought but also conducive to the role of the liver protection. 4 , in vitro anti-bacterial role shouwu to curb people - tb, bacillary dysentery fook's growth and its derivatives category anthraquinone consignment of gold yellow staphylococcus, streptococcus, diphtheria disease, such as anthrax bacilli bacteria and influenza viruses, fungi, and other pathogens have different degrees of effect. 5 and other thought of white hair, alopecia, muscle contraction, numbness, neurasthenia, schizophrenia, sore swollen completely ringworm have better treatment results.